I bought a Samsung S24 recently but sold it because of the terrible ultrasonic fingerprint reader. I guess I have too dry thumbs or something. Using lotion helped for a few hours at a time but I’d rather not use lotion all the time because of my phone. Tried a few tricks like registrering my prints twice etc. but no dice. Meanwhile the old optical reader on my old phone Moto G84 worked perfectly.
So my experience from this is that ultrasonic is not always better.